EP 0711824 B1 20020828 - Lubricating oil and composition for refrigerating machine
Title (en)
Lubricating oil and composition for refrigerating machine
Title (de)
Schmieröl und Zusammensetzung für Kältemaschine
Title (fr)
Huile lubrifiante et composition pour machine réfrigérante
Publication
Application
Priority
JP 29602994 A 19941107
Abstract (en)
[origin: EP0711824A2] A lubricating oil for refrigerating machines mainly comprises polyoxyalkylene compounds represented by the following formula (I); <CHEM> wherein A represents a residue obtained from a compound which has both a heterocyclic ring having an ether linkage and hydroxyl groups in the molecule by eliminating the hydroxyl groups from the compound; R<1> and R<2> are each an alkylene group; R<3> is an alkyl group; R<4> is hydrogen atom or an alkyl group; a and b are each a positive integer and l , m and n are each an integer of 0 or more with the proviso that a. l + b.m = 2 to 100 and l + m + n = 2 to 20; further, the polyoxyalkylene compounds satisfying the following two conditions: (a) the compounds have a hydroxyl value ranging from 0 mgKOH/g to 30.0 mgKOH/g and (b) a ratio of butylene groups of all alkylene groups represented by R<1> and R<2> to the all alkylene groups satisfies the following formula (1) <MATH> wherein "p" is the number of butylene groups, "q" is the number of alkylene groups excluding the butylene groups. In other embodiments, this invention relates to a composition for refrigerating machines comprising the lubricating oil mentioned above and an alkane fluoride and/or alkane chlorofluoride refrigerant, and also to a refrigerating machine wherein the composition is used.
IPC 1-7
IPC 8 full level
C10M 107/34 (2006.01); C10M 171/00 (2006.01)
CPC (source: EP KR US)
C10M 107/34 (2013.01 - EP KR US); C10M 171/00 (2013.01 - KR); C10M 171/008 (2013.01 - EP US); C10M 2207/024 (2013.01 - EP US); C10M 2207/026 (2013.01 - EP US); C10M 2207/042 (2013.01 - EP US); C10M 2207/125 (2013.01 - EP US); C10M 2207/129 (2013.01 - EP US); C10M 2209/105 (2013.01 - EP US); C10M 2209/106 (2013.01 - EP US); C10M 2209/108 (2013.01 - EP US); C10M 2211/022 (2013.01 - EP US); C10M 2211/06 (2013.01 - EP US); C10M 2215/065 (2013.01 - EP US); C10M 2215/066 (2013.01 - EP US); C10M 2215/22 (2013.01 - EP US); C10M 2215/221 (2013.01 - EP US); C10M 2215/225 (2013.01 - EP US); C10M 2215/226 (2013.01 - EP US); C10M 2215/30 (2013.01 - EP US); C10M 2223/04 (2013.01 - EP US); C10M 2223/041 (2013.01 - EP US); C10M 2223/042 (2013.01 - EP US); C10M 2223/043 (2013.01 - EP US); C10M 2223/045 (2013.01 - EP US); C10N 2010/04 (2013.01 - EP US); C10N 2040/00 (2013.01 - EP US); C10N 2040/30 (2013.01 - EP US); C10N 2040/32 (2013.01 - EP US); C10N 2040/34 (2013.01 - EP US); C10N 2040/36 (2013.01 - EP US); C10N 2040/38 (2020.05 - EP US); C10N 2040/40 (2020.05 - EP US); C10N 2040/42 (2020.05 - EP US); C10N 2040/44 (2020.05 - EP US); C10N 2040/50 (2020.05 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
EP 0711824 A2 19960515; EP 0711824 A3 19970813; EP 0711824 B1 20020828; BR 9505108 A 19970909; CA 2162229 A1 19960508; CA 2162229 C 20040518; DE 69527913 D1 20021002; DE 69527913 T2 20030424; KR 0164650 B1 19990115; KR 960017823 A 19960617; US 5746933 A 19980505
DOCDB simple family (application)
EP 95117506 A 19951107; BR 9505108 A 19951107; CA 2162229 A 19951106; DE 69527913 T 19951107; KR 19950040007 A 19951107; US 55254095 A 19951103